Weather in Grantsburg, IL
Updated 2026-08-11 12:45 local time · ZIP codes 62943
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
93°4% rain96°2% rain96°2% rain95°2% rain93°2% rain90°3% rain87°4% rain
83°6% rain81°7% rain80°7% rain79°7% rain78°7% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 7%).
It feels like 111°F with winds near 12 mph.
83°F, 6% rain chance and 9 mph wind.
Visibility is around 10 mi; gusts may reach 19 mph.
Current temperature is 93°F, wind 12 mph, rain chance up to 7%.
UV index is 8. Sunscreen, shade and protective clothing are recommended.
Grantsburg weather today
Sunny and 93°F in Grantsburg, IL. Today's high is 96°F with a 7% rain chance. Winds are around 12 mph with gusts near 14 mph. Relative humidity is 56%, pressure is 30.03 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Grantsburg
Sunrise is at 06:07 AM and sunset is at 07:52 PM. Tomorrow's forecast calls for Sunny with a high near 100°F and a low near 74°F. The maximum rain chance is 17%.